linux-kernel - Re: [patch 05/19] split LRU lists into anon & file sets

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Date:	Fri, 11 Jan 2008 10:59:18 -0500
From:	Lee Schermerhorn <Lee.Schermerhorn@...com>
To:	Rik van Riel <riel@...hat.com>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch 05/19] split LRU lists into anon & file sets

On Fri, 2008-01-11 at 10:42 -0500, Rik van Riel wrote:
> On Fri, 11 Jan 2008 15:24:34 +0900
> KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:
> 
> > below patch is a bit cleanup proposal.
> > i think LRU_FILE is more clarify than "/2".
> > 
> > What do you think it?
> 
> Thank you for the cleanup, your version looks a lot nicer.  
> I have applied your patch to my series.
> 

Rik:  

I think we also want to do something like:

-	BUILD_BUG_ON(LRU_INACTIVE_FILE != 2 || LRU_ACTIVE_FILE != 3);
+	BUILD_BUG_ON(LRU_INACTIVE_FILE != 2 || LRU_ACTIVE_FILE != 3 ||
+		NR_LRU_LISTS > 6);

Then we'll be warned if future change might break our implicit
assumption that any lru_list value with '0x2' set is a file lru.

Lee

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